:root {
  --ink: #0f1419;
  --panel: #1a222c;
  --line: #2a3544;
  --text: #e7ecf1;
  --muted: #8b9aab;
  --amber: #e8a838;
  --danger: #e85d5d;
  --focus: #e8a838;
  --radius: 10px;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, #1a2838 0%, transparent 55%),
    var(--ink);
  -webkit-font-smoothing: antialiased;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.shell {
  width: min(40rem, calc(100% - 2rem));
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.25rem;
  padding: 2.5rem 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0.15rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.brand-mark {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 1px;
  background: var(--amber);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--amber) 18%, transparent);
  flex-shrink: 0;
}

.brand-name {
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-sep,
.brand-tag {
  color: var(--muted);
  font-size: 0.9rem;
}

.brand-tag {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
}

.live-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--muted);
}

.live[data-state="loading"] .live-dot {
  background: var(--muted);
  animation: pulse 1.2s ease-in-out infinite;
}

.live[data-state="live"] .live-dot {
  background: var(--amber);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--amber) 22%, transparent);
}

.live[data-state="error"] .live-dot {
  background: var(--danger);
}

.live[data-state="live"] .live-label {
  color: var(--amber);
}

.live[data-state="error"] .live-label {
  color: var(--danger);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem 1.35rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  animation: rise 0.28s var(--ease) both;
}

.eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.ip-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.ip {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.85rem, 7vw, 3.25rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
  min-height: 1.15em;
}

.ip.is-skeleton {
  color: transparent;
  background: linear-gradient(
    90deg,
    var(--line) 25%,
    color-mix(in srgb, var(--line) 65%, var(--text)) 50%,
    var(--line) 75%
  );
  background-size: 200% 100%;
  border-radius: 6px;
  animation: shimmer 1.2s linear infinite;
  width: min(18ch, 100%);
}

.status-line {
  min-height: 1.35em;
  margin: 0.55rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.status-line[data-tone="ok"] {
  color: var(--amber);
}

.status-line[data-tone="error"] {
  color: var(--danger);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.meta-cell {
  padding: 1rem 0.9rem 1rem 0;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.meta-cell:nth-child(even) {
  padding-left: 0.9rem;
  padding-right: 0;
  border-left: 1px solid var(--line);
}

.meta-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
}

.meta-value {
  display: block;
  font-size: 0.98rem;
  font-weight: 500;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.meta-value.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.92rem;
}

.meta-value.is-skeleton {
  color: transparent;
  background: var(--line);
  border-radius: 4px;
  width: 70%;
  min-height: 1.1em;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.15rem;
  flex-wrap: wrap;
}

.updated {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.55rem 1rem;
  border-radius: 7px;
  font-size: 0.92rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    transform 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.btn-primary {
  background: color-mix(in srgb, var(--amber) 16%, transparent);
  border-color: color-mix(in srgb, var(--amber) 45%, var(--line));
  color: var(--amber);
}

.btn-primary:not(:disabled):hover {
  background: color-mix(in srgb, var(--amber) 24%, transparent);
}

.btn-primary:not(:disabled):active {
  transform: translateY(1px);
}

.btn-ghost {
  color: var(--muted);
  border-color: var(--line);
  background: transparent;
}

.btn-ghost:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--muted) 40%, var(--line));
}

.footer {
  padding: 0 0.15rem;
}

.footer p {
  margin: 0;
  font-size: 0.8rem;
  color: color-mix(in srgb, var(--muted) 80%, transparent);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 1.25rem, 40rem);
    padding: 1.5rem 0 2rem;
    justify-content: flex-start;
  }

  .panel {
    padding: 1.4rem 1.1rem 1.15rem;
  }

  .meta-grid {
    grid-template-columns: 1fr;
  }

  .meta-cell,
  .meta-cell:nth-child(even) {
    padding: 0.95rem 0;
    border-left: none;
  }

  .brand-tag,
  .brand-sep {
    display: none;
  }

  .ip-row {
    align-items: stretch;
  }

  .btn-primary {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .panel {
    animation: none;
  }

  .live[data-state="loading"] .live-dot,
  .ip.is-skeleton {
    animation: none;
  }

  .btn {
    transition: none;
  }
}